ISOtunes Sport DEFY Slim Basic Ear Muffs (NRR 20) NRR_31 Stand-by time: 100 hours

Stand-by time: 100 hours

The soft foam provides a high level of comfort

Secure and comfortable

While this response was a vital part of our evolution to alert us to the slightest sound or threat

Soft polyurethane foam tips

ISOtunes Sport DEFY Slim Basic Ear Muffs (NRR 20) NRR_31 Stand-by time: 100 hoursSame Great Protection. Slimmer Fit. ISOtunes Sport DEFY Slim Basic delivers superior protection in a no frills, ultra slim design. Tactical Sound Control allows you to hear and control ambient sound volumes, all while protecting you from harmful gunshot noises. DEFY Slim Basic is the ultimate electronic earmuff for distraction free, high performance protection. Please note: this product is not Bluetooth enabled and does not include a microphone for